Error separation method based on foundation strength system and foundation strength system

A ground-based augmentation system and error separation technology, applied in the field of GPS navigation and positioning, to reduce noise and multipath errors, and eliminate spatial gradients

Inactive Publication Date: 2007-12-19
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented process eliminates any impact on space-time delays caused by different atmospheres or weather conditions that affects how well an observed satellite's position changes over time due to its motion relative to another object such as other satellites or ground stations. This results in improved accuracy for navigation systems like GPS (Global Positioning System).

Problems solved by technology

Technological Problem addressed in this patents relating to improving accurate location estimation based upon gamma ray measurements received over different radio channels such as GLOSARS receivers and Galilones. Current methods have limitations including incorrect calculations, reduced resolution capabilities, and increased complexity compared to traditional techniques like Kalman filters.

Method used

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  • Error separation method based on foundation strength system and foundation strength system
  • Error separation method based on foundation strength system and foundation strength system
  • Error separation method based on foundation strength system and foundation strength system

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Experimental program
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Embodiment Construction

[0028] First introduce the model of the code and carrier phase observations in the GPS system:

[0029] Assume that the code and carrier phase observations at the L1 frequency of GPS are ρ 1 and φ 1 , whose equations are:

[0030] ρ 1 = r + i 1 + η ρ 1 φ 1 = r - i 1 + N 1 + ...

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Abstract

An error separating method based on ground-base intensification system includes separately calculating code smooth s\pseudo-distance of ground station and code smooth pseudo-distance of client station, separately estimating ionized layer delay error of ground station and ionized layer delay error of client station, broadcasting data of ground station to client station and carrying out differential calibration on said data by client station. The ground-base intensification system applied in said method is also disclosed.

Description

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Claims

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Application Information

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Owner BEIHANG UNIV
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